Question
My son is 5 years old, and his teeth have recently changed color. I want to know if this could be due to lead poisoning. He has never received any treatment, and I would like to know how I can help him.
Answer
Based on your description, it appears that your son may have encountered malnutrition or disease interference during the growth and development of his teeth, which could have hindered the hardening of the tooth fibers. Additionally, excessive fluoride levels in drinking water may also cause tooth discoloration. It is recommended that you take your child to a dentist for a detailed examination to determine the cause and take appropriate treatment measures. If it is due to dental caries, you can use fluoride toothpaste for brushing, hoping your child will recover soon.